persistent method, rm setEphemeral (#19)

* persistent method, rm setEphemeral

* docs: persistent

README.md

@@ -242,9 +242,9 @@ as it is more reliable the more routing information the node has.
 
 Explicitly bind the dht node to a certain port/address.
 
-#### `node.setEpehemeral(boolean)`
+#### `node.persistent()`
 
-Dynamically convert the node into ephemeral (leave the DHT) or non-ephemeral (join the DHT).
+Dynamically convert the node from ephemeral to non-ephemeral (join the DHT).
 
 #### `node.on('ready')`
 

index.js

@@ -386,13 +386,7 @@ class DHT extends EventEmitter {
     }
   }
 
-  setEphemeral (ephemeral = false, cb) {
-    if (ephemeral === true) {
-      this._io.id = null
-      this.ephemeral = true
-      if (cb) process.nextTick(cb)
-      return
-    }
+  persistent (cb) {
     this._io.id = this.id
     this.bootstrap((err) => {
       if (err) {

test.js

@@ -212,7 +212,7 @@ tape('timeouts', function (t) {
   })
 })
 
-tape('setEphemeral(false)', function (t) {
+tape('persistent', function (t) {
   bootstrap(function (port, node) {
     const a = dht({ bootstrap: port, ephemeral: true })
     const b = dht({ bootstrap: port })
@@ -228,7 +228,7 @@ tape('setEphemeral(false)', function (t) {
         b.query('hello', key, (err, result) => {
           t.error(err)
           t.is(result.length, 0)
-          a.setEphemeral(false, (err) => {
+          a.persistent((err) => {
             t.error(err)
             b.query('hello', key, (err, result) => {
               t.error(err)